package collection;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

public class SortPoint {
    public static void main(String[] args) {
        List<Point> list = new ArrayList<>();
        list.add(new Point(1,2));
        list.add(new Point(3,4));
        list.add(new Point(5,6));
        list.add(new Point(56,60));
        list.add(new Point(888,999));
        list.add(new Point(4,12220));

        System.out.println("list的默认排序是:"+list);

        Collections.sort(list, new Comparator<Point>() {
            @Override
            public int compare(Point o1, Point o2) {
                //int len1 =o1.getX()*o1.getY()+o2.getX()*o2.getY();
                //int len2 =o1.getX()*o2.getY()+o2.getY()*o2.getX();
                int len1 = o1.getX();
                int len2 = o2.getX();
                return len1-len2;
            }
        });
        System.out.println("list排序后的是:"+list);
    }
}
